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Noun: melioration  ,meel-yu'rey-shun [N. Amer], ,mee-lee-u'rey-shun [Brit]
  1. The act of relieving ills and changing for the better
    - amelioration, betterment
  2. A condition superior to an earlier condition
    "the new school represents a great melioration";
    - improvement
  3. The linguistic process in which over a period of time a word grows more positive in connotation or more elevated in meaning

Derived forms: meliorations

Type of: condition, drift, improvement, status

Encyclopedia: Melioration